Redoubt Watch

There was no evidence of ash emissions or elevated surface temperatures in cloudy satellite images over the past day. There have been no indications of explosive ash-producing activity from satellite or from distant seismic, pressure or lightning sensors. It remains possible for intermittent, sudden explosions of blocks and ash to occur at any time, and ash clouds exceeding 20,000 feet above sea level may develop. Such explosions and their associated ash clouds may go undetected in ...

There was no evidence of ash emissions or elevated surface temperatures in cloudy satellite images over the past day. There have been no indications of explosive ash-producing activity from satellite or from distant seismic, pressure or lightning sensors. It remains possible for intermittent, sudden explosions of blocks and ash to occur at any time, and ash clouds exceeding 20,000 feet above sea level may develop. Such explosions and their associated ash clouds may go undetected in ...

There was no evidence of ash emissions or elevated surface temperatures in partly cloudy satellite images over the past day. There have been no indications of explosive ash-producing activity from satellite or from distant seismic, pressure or lightning sensors. It remains possible for intermittent, sudden explosions of blocks and ash to occur at any time, and ash clouds exceeding 20,000 feet above sea level may develop. Such explosions and their associated ash clouds may go undetected in ...

There was no evidence of ash emissions or elevated surface temperatures in partly cloudy satellite images over the past day. There have been no indications of explosive ash-producing activity from satellite or from distant seismic, pressure or lightning sensors. Renewed eruptive activity producing a small 40 meter (130 foot) lava dome was first observed in satellite data on 30 January 2012, following a month of little to no observable change. The new dome occupies only a small portion of ...

Satellite observations over the past day were mostly obscured by clouds. There have been no indications of explosive ash-producing activity from satellite or from distant seismic, pressure or lightning sensors. Renewed eruptive activity producing a small 40 meter (130 foot) lava dome was first observed in satellite data on 30 January 2012, following a month of little to no observable change. The new dome occupies only a small portion of the approximately 200 meter (650 foot) diameter ...

Satellite observations over the past day were mostly obscured by clouds. There have been no indications of explosive ash-producing activity from satellite or from distant seismic, pressure or lightning sensors. Renewed eruptive activity producing a small 40 meter (130 foot) lava dome was first observed in satellite data on 30 January 2012, following a month of little to no observable change. The new dome occupies only a small portion of the approximately 200 meter (650 foot) diameter ...

Satellite observations throughout the week suggest that eruptive activity at Cleveland Volcano has slowed or paused. Since observation of a new lava dome on 30 January, its size has not changed appreciably. Satellite-derived surface temperatures are consistent with slow to no growth of the dome. There have been no indications of explosive ash-producing activity from distant seismic, pressure or lightning sensors. Renewed eruptive activity producing a small 40 meter (130 foot) lava dome was ...

There was no evidence of ash emissions or elevated surface temperatures in partly cloudy satellite images over the past day. AVO has not received any other reports of activity. Renewed eruptive activity producing a small 40 meter (130 foot) lava dome was first observed in satellite data on 30 January 2012, following a month of little to no observable change. The new dome occupies only a small portion of the approximately 200 meter (650 foot) diameter summit crater. There have been no ...

Renewed eruptive activity of Cleveland Volcano has been observed in satellite data, and AVO is raising the Aviation Color Code to Orange and the Alert Level to Watch. A new lava dome has been observed in the summit crater, and as of 30 January 2012 was approximately 40 meters (130 feet) in diameter. There have been no observations of ash emissions or explosive activity during this current lava eruption. The lava dome that formed throughout the fall-winter of 2011 was largely removed by the ...

No new activity was detected at Cleveland volcano this week. Clouds obscured views of the volcano by satellite this week. Satellite data indicate that the lava dome that formed throughout the fall-winter of 2011 was largely removed and covered by the explosive activity of late December. It is uncertain if eruptive activity at Cleveland has ended, paused, or is occurring at a level below our detection capabilities. It remains possible for intermittent, sudden explosions of blocks and ash to ...

AVO can no longer seismically monitor Wrangell volcano because of seismic station outages. As a result, AVO is unable to assess seismic activity at this volcano. As at other volcanoes without real-time seismic networks, AVO will continue to use satellite data and reports from pilots and ground observers to detect signs of eruptive activity. Because Wrangell is no longer seismically monitored, earlier today we changed both the Volcano Alert Level from Normal and Aviation Color Code from Green ...

AVO can no longer seismically monitor Wrangell volcano because of seismic station outages. As a result, AVO is unable to assess seismic activity at this volcano. As at other volcanoes without real-time seismic networks, AVO will continue to use satellite data and reports from pilots and ground observers to detect signs of eruptive activity. Because Wrangell is no longer seismically monitored, we are changing both the Volcano Alert Level from Normal and Aviation Color Code from Green to ...

No new activity was detected at Cleveland volcano this week. Elevated surface temperatures at the volcano's summit were observed in a satellite image on January 17. The elevated temperatures likely result from active fumaroles (vents of hot steam and gas) as well as from recent, still-warm deposits of ash, blocks, and lava. No lightning, airwave (infrasound) signals, or volcanic ash in satellite images were detected during this interval, indicating that the elevated temperatures were not ...

No new activity was detected at Cleveland volcano this week. Elevated surface temperatures at the volcano's summit were observed in satellite images January 12. The elevated temperatures likely result from active fumaroles (vents of hot steam and gas) as well as from recent, still-warm deposits of ash, blocks, and lava. No lightning, airwave (infrasound) signals, or volcanic ash in satellite images were detected during this interval, indicating that the elevated temperatures were not related to ...

Satellite views of Cleveland Volcano throughout the past week have indicated nothing unusual and no signs of eruptive activity have been observed. AVO has received no reports of activity at the volcano from pilots or other observers. Satellite data indicate that the lava dome that formed throughout the fall-winter of 2011 was largely removed by the explosive activity of last week. It is uncertain if eruptive activity at Cleveland has ended, paused, or is occurring at a level below our ...

Satellite views of Cleveland Volcano over the past 24 hours have indicated nothing unusual and no signs of eruptive activity have been observed. AVO has received no reports of activity at the volcano from pilots or other observers. AVO will cease daily reporting on Cleveland Volcano until a significant change occurs, new information about unrest becomes available, or sufficient time has passed without activity to warrant a return to UNASSIGNED/NORMAL. It is uncertain if eruptive activity ...

Cloudy weather conditions have prevented clear satellite views of Cleveland Volcano in the last day. AVO has received no reports of activity at the volcano. More sudden explosions producing ash or ejecting blocks may still occur with plumes exceeding 20,000 feet above sea level. Such explosions and their associated ash clouds may go undetected in satellite imagery for hours. However, in cooperation with the University of Washington, AVO has implemented a lightning alarm system that may ...

There have been no signs of new eruptive activity or unrest in satellite images of Cleveland during the past 24 hours. More sudden explosions producing ash or ejecting blocks may still occur with plumes exceeding 20,000 feet above sea level. Such explosions and their associated ash clouds may go undetected in satellite imagery for hours. However, in cooperation with the University of Washington, AVO has implemented a lightning alarm system that may detect significant ash-producing events ...

There are no signs of new eruptive activity or unrest in several clear to partly clear satellite images of Cleveland during the past 24 hours. More sudden explosions producing ash or ejecting blocks may still occur with plumes exceeding 20,000 feet above sea level. Such explosions and their associated ash clouds may go undetected in satellite imagery for hours. However, in cooperation with the University of Washington, AVO has implemented a lightning alarm system that may detect ...

Earlier today, AVO lowered the aviation color code to YELLOW and alert level to ADVISORY for Cleveland Volcano. No new explosive activity has been observed at the volcano since the ash cloud that was detected yesterday morning. More sudden explosions producing ash or ejecting blocks may still occur with plumes exceeding 20,000 feet above sea level. Such explosions and their associated ash clouds may go undetected in satellite imagery for hours. However, in cooperation with the University ...